Give a comparative description of nitrogen and phosphorus.

In order to compare these two elements, it is necessary to consider their position in the periodic table.

1. Nitrogen is in the second period, therefore all its electrons (the number of all electrons = 7) are located on two levels, phosphorus is in the third period, therefore all its electrons (the number of all electrons = 15) are located on three energy levels.

2. These atoms are located in group V, therefore, each has 5 electrons on the outer level.

3. Everyone must take 3 electrons, or donate 5 electrons before completing the level. N is easier to take 3 electrons than P. P is easier to donate 5 electrons than N.